Overseaming sewing-machine.



4 No. 666,544. Patented Ian; 22, I90l.

L. MUTHER. OVERSEAMING SEWING MACHINE.

(Applicatinn filed May 11, 1899.) (No Model.)

2 Sheets-Shut l.

F N I $303277? No. 666,544. Patented Jan. 22, l90l. L. MUTHER.

OVERSEAMl-NG SEWING MACHINE.

(Application filed. May 11, 1899.)

(No Model.) 2 Sheets-Sheet 2 a 37/07765565." fizz/e77 o LORENZ MUTHER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE UNION SPECIAL SEWVING MACHINE COMPANY, OF SAME PLACE.

OVERSEAMING SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 666,544, dated January 22, 1901.

Application filed May 11, 1899.

To all whmn it may concern:

Be it known that I, LORENZ MUTHER, a citizen of the United States, residing at Chicago, in the county of Cook, State of Illinois, have invented certain new and useful Improvements in Sewing-Machines, of which the following is a description, reference being had to the accompanying drawings and to the letters of reference marked thereon.

My invention relates to an improvement in sewing-machines, and is designed particularly as an improvement upon what is known as the Union Special side-wheel machine, illustrated in patent granted L. Muther, R. G. Woodward, and E. C. Holland, No. 583,415, May 12, 1897, the object of the present invention being to provide mechanism upon such machine driven from the main transverse shaft which through suitable connections shall operate a needle-bar carrying gate or frame in order to adapt the said side-wheel machine for the purpose of overseaming.

The invention consists in the matters hereinafter described, and referred to in the appended claims.

In the accompanying drawings,which illustrate the invention, Figure 1 is a side elevation of a sewing-machine embodying my invention. Fig. 2 is a top plan view of the same, partly in section. Fig. 3 is a detail view of the gear-Wheel and eccentric for actuating the needle vibrating mechanism. Fig. at is a detail view showing the mode of connection of the pitman-rod to the eccentric driving-gear, and Fig. 5 is a detailed view of the pivoted block M.

In the drawings, A represents the base or standard of the machine, 13 the cylindrical bed-plate or casing, C the overhanging arm or gooseneck, and D the main transverse shaft, all of which parts are the same as similar parts illustrated in the patent above referred to.

E represents as a whole a gate or frame pivotally mounted on a vertical axis on the head of the machine and having bearing-lugs for the needle-bar F. In the swinging movement of this gate or frame the needle-bar is carried from one side to the other of the line of seam, making a zigzag or overseam stitch. This needle-bar gate or frame does not ma- Serial No. 716,379. (N5 model-l Mounted upon the standard A of the machine,above the main shaft and parallel therewith, is a pin or stationary shaft G, upon which is sleeved a gear-wheel I-I, meshing with the gear-Wheel I, carried by the drivingshaft. This gear-wheel H has a groove K on its inner face, while its inner hub L is in the shape of 'a cam or eccentric. Adjacent the cam portion and mounted on the stationary shaft or pin is a block M, over which fits and slides the forked end of a connecting-rod N, having a socket in which is screwed one end of the pitman or connecting-rod O, which at its opposite end is connected with the needlebar gate or frame. This forked end of the connecting rod or block N is split, as shown at a, and is screw-threaded to receive a screw or pin 19, carrying upon its inner end a roller 0 which travels around the periphery of the cam K, and as the gear-wheel H rotates the forked block N slides back and forth upon the block M, thus imparting to the needlebar gate or frame an oscillatory movement. A washer P serves to hold the block M in proper position between a portion of the standard and the cam part K of the gearwheel H, while a washer Q on the outer end of the stationary pin or shaft holds said gearwheel 11 in position.

Having thus described my invention, what I claim-as new, and desire to secure by Letters Patent, is

1. In asewing-machine having an overhanging arm or gooseneck, a main driving-shaft transverse thereof, a suitable casing or bedplate extending at right angles thereto, an oscillating needle-bar gate or frame swinging transversely across the axis of the bed-plate and connection between the driving-shaft and said gate or frame for oscillating the latter, said connections including a shaft parallel to the driving-shaft and supporting transmitting-gearing, substantially as described.

2. In combinationwith the main drivingshaft, a suitable casing or bed-plate extending at right angles to the driving-shaft and an oscillating needle-bar gate swinging transversely across the axis of the bed-plate, astawith a cam-shaped inner hub, a block loosely mounted on said stationary shaft, a forked connecting-rod having a sliding engagement with said loose block and having a part in engagement with said cam whereby the rod is reciprocated as the cam rotates, a pivotedneedle-bar gate or frame swinging transversely across the axis of the bed-plate and a pitman connection between the sliding fork and the oscillating gate or frame; substantially as described.

In testimony whereof I affix my signature 30 in presence of two witnesses.

LORENZ MUTHER.

Witnesses:

CHESTER MONEIL, ANNA S. KATZ. 

